stevens



3 Sheets-Sheet 1."

0. A. STEVENS 82; E. L. DU BARRY. APPARATUS FOR THB DISTILLATION FAMMONIAGAL LIQUORS.

`No. 282,398. Patented July 31, 1883.

(No Model.)

N4 PEIEHS. Pnmumompbsr. washington, D. C.

(Np Model.)

3 Sheets-Shzeet 2. O. A. STEVENS 81; E. L.' DU BARRY. APPARATUS FOR THEDISTILLATION 0I AMMONIACAL LIQUORS. No. 282,898.

atenpqdJuly 81, 1883.

Pham'Liinagnpmf. wnningmn. D. C.

l (No Model.) 3 Sheets-Sheet 3, 0. A. STEHNS E. L. D'UBARRY- APPARATUSFR THE DISTILLATION OF AMMONIAAL LQUORS. N0. 282,398.

In/ezgra. C", UZ, Stel/ems,

Patented July 31, 1883.

N4 PETERS Fhnloumngmpmr. wmhingxm. D. C,

i UNITED STATES4 osoAR A. srnvmvs AND TEDMUD D.

"PATENT OFFICE.

Du BARRY, on wAsHiNe-ron, D. c.

APPARATUS FOR THE DlsTlLLA-rloN oF AMMONIACAL LlleiuoRs.

SPECIFICATION `forming part' offnetters Patent No. 282,398, dated Julye1, rese.

' Application filedJuly 1.2,1B82. (No model.)

To ail 1071/0777, it may concern.L Be it known that we, OsoAR'A. STEVENSand EDMUND L. DU BARRv, both citizens of the United States, residing atWashington, in the District of Columbia, have invented new and usefulImprovements in Separating Ammonia and other `Gfases from Gas-Liquor, ofwhich the following is a specification.

This invention relates to certain improvements in apparatus forseparating ammoniacal l and other gases from gas-liquors; Aand it hasfor its objects to provide suitable means .and apparatus wherebythegas-liquor may be supplied in proper quantities, and suitably andeconomically heatedto expel the gases, and conveniently regulated as itis supplied, `as more fully hereinafter specified. These 1objects weattain by the apparatus illustrated in the accompanying drawings, inwhich- Figure 1 represents a perspective viewof our improved apparatus,showing the connections for supplying the gas-liquor to the same forheating the apparatus, for observing the contents of the interior, andfor the escape of the waste and products of condensation. Fig. 2represents a longitudinal sectional view of the apparatus, showing theinternal arrangement of the sanie; and Fig. 3, ahorizontal sec tionalview of the upper part of the apparatus, showing one of theevaporating-pans and its system of heating-pipes.

The letterAindicates a closed vessel of any suitable shape and capacity,which is provided with a removable head atreither end, in order that itsinterior may be readily inspected for cleansing or repairs. rlhe saidvessel is provided with a dome, B, on top, from which `exL tend a seriesof pipes, C, to a suitable condenser or settler, or a series of such.Vithin said vessel is located a series of evapbratingpans, l), whichextend from end toend of said vessel, dividing the same into a number ofevaporating-compartments, Through the crown of the said vessel A extendsa pipe, F, provided-'with a valve or cock, G, the lower or inner endextending to near the bottom of the upper evaporatingpan in said vessel,and the outer or upper end being connect-ed with a suitable reservoirfrom which the gas-liquor may be supplied. l

The pans alternately at opposite ends are `provided with overflow-tubesH, the upper ends of which are upon a level to which the gas-liquor isintended tov rise in the said pans,

so that when the liquor rises in the pans above said level it will passautomatically to the succeeding pans without emptying the pans above.

neet with a steam-induction pipe, L, leading from a suitable boiler, bymeans ofthe valved branch pipes M, and with an eduction-pipe, N, vbymeans oi branch pipes O, whereby the waste steam may escape.

The letter P indicates a series of glassgages similar to the glass gagesof an ordinary steamr boiler. One is provided for each pan, and extendsoutward and in front of the vessel or chamber A, communicating with, thelower portions of the pans, and with the `compartments which they form,so as to indicate the height o'f the liquor in each from the outside.

The letter R indicates an eductio11-pipe com; municating with therespective evaporatingpans by means vof the branches S, which areprovided with cocks or valves T, by means of which the contents of anyor all of the pans may be discharged at will; and U indicates a pipeprovided with a valve, V, by means of which the vessel A inay be emptiedwhende sired.

In order to provide for the free escape of the vapors from thesuccessivepans and the compartments which they form, directly beneath the dome ineach pan of the series is located a tube or man -hole, W, which extendsupward above the level of the overflow-tubes H, so Y that they willpresent a free passage for gases evolved from the liquor in thesuccessive pans,

and at the same time prevent the liquor from Y descending from one panto the other. When the removable head joins the ends of the pans, Valead or. other packing may be interposedto form a tight j ointbetweenthe compartments to roo preventtheir communication except through theproper. passages.

As thus constructed, it will be seen that an extensiveevaporating-surface issecured, and

that the gases not separated in the iirst pan or shelf will,with theliquor, pass to the pan be-l low and be further submitted to the actionof heat, and so on, until all the gas is freed and carried to thesettlers.

The vertical pipes H, dipping at their lower ends into the liquor, formseals which prevent the gas from escaping upward through the same, whilethey form channels for the incoming cold liquor which displaces the hotliquor in the pans.V The iniiow, it will be seen, is continuous, and canbe inspected from the front, so as to indicate when it is necessary toregulate it.

The improved apparatus is designed to be employed in connection with anyof the known apparatus for separating ammoniacal and other gases fromgas-liquor, and may be connected with any suitable apparatus for burningnoxious gases, so as not to contaminate the atmosphere. NVe also proposeproviding a series of thermometers, P', onefor each compartment E, sothat the temperature of the liquors in the pans can bereadilyascertained.

y These thermometers will be fixed in openings formed in the vessel A,and in order to thoroughly expose the thermometers to the liquor a shorttube, P2, can be provided for each thermometer, and arranged so as tocommunicate with the interior of the vessel and connect with theexterior of the thermometer-bulb, thus allowing the liquor to come intointimate contact with all sides of the said bulb. A manhole can also beprovided for each comparti 2 l escasas ing distillation being containedboth within and outside of the several coils.

Having thusdescribed our invention, what we claim is 1. In combinationwith the closed vessel of l 5 5 the evaporating-pans, each provided withseparate heating-pipes and supply and eduction connections, and thecentral passages or manholes for the escape of gases from the successivepans, substantially as specified.

2. The combination, with the closed vessel, of the evaporating-panslocated therein, the liquor-supply and connecting pipes, the steamheating and eduetion pipes, the gages, and thel central gas-escape pipesextending upward through the pans, the whole arranged sub.

stantially as herein specified, for the purposes set forth.

In testimony whereof we have hereunto set our hands in the presence oftwo subscribing witnesses. f

` 0. A. STEVENS. v

EDMUND L. DU BARRY. Witnesses:

JAMns Lawson NoRRrs, JAMES A. RUTHERFORD.

